How Penicillin Was Discovered In 1928, Sir Alexander Fleming was studying Staphy

Question

How Penicillin Was Discovered In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present. Fleming hypothesized that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died which was later used to develop antibiotics used to treat a variety of diseases.
6. Identify the problem. 7. What was Fleming's hypothesis? 8. How was the hypothesis tested? 9. Should the hypothesis be supported or rejected based on the experiment? 10. This experiment lead to the development of what major medical advancement?
How Penicillin Was Discovered In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present. Fleming hypothesized that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died which was later used to develop antibiotics used to treat a variety of diseases.
6. Identify the problem. 7. What was Fleming's hypothesis? 8. How was the hypothesis tested? 9. Should the hypothesis be supported or rejected based on the experiment? 10. This experiment lead to the development of what major medical advancement?
How Penicillin Was Discovered In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present. Fleming hypothesized that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died which was later used to develop antibiotics used to treat a variety of diseases.
6. Identify the problem. 7. What was Fleming's hypothesis? 8. How was the hypothesis tested? 9. Should the hypothesis be supported or rejected based on the experiment? 10. This experiment lead to the development of what major medical advancement?

Explanation / Answer

6. The problem was the verification of the fact that the mold produced a substance that killed the bacteria or not.

7. Fleming hypothesis zed that a chemical produced by the mold killed the bacteria in the dish.

8. The hypothesis was tested by isolating the substance produced by the mold and then treating the mold with this substance in the nutrient broth to confirm that this substance led to the death of bacteria.

9.    Based on the experiment the hypothesis should be supported.

10. This experiment led to the development of antibiotics which are used to treat many diseases. Hence it is a major medical advancement.

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